Home / 30,376.14-45,488.88-21,025.50

Finding the Fourth Proportional to 30,376.14, 45,488.88 and 21,025.50

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Solution

The fourth proportional to 30,376.14, 45,488.88 and 21,025.50 is: 31,486.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,376.14 : 45,488.88 = 21,025.50 : x
  2. Step 2: Convert to fraction form
    30,376.14/45,488.88 = 21,025.50/x
  3. Step 3: Cross multiply
    30,376.14x = 45,488.88 × 21,025.50
  4. Step 4: Simplify right side
    30,376.14x = 956,426,446.44
  5. Step 5: Solve for x
    x = 956,426,446.44/30,376.14
  6. Step 6: Final answer
    x = 31,486.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.